
Scatter Plots and Correlation Analysis

Interactive Video
•
Mathematics
•
9th - 10th Grade
•
Hard

Olivia Brooks
FREE Resource
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10 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What are the three conditions that must be satisfied before using the linear correlation model?
Two qualitative variables, a non-linear scatter plot, and no outliers
Two qualitative variables, a linear scatter plot, and outliers
Two quantitative variables, a linear scatter plot, and no outliers
Two quantitative variables, a non-linear scatter plot, and outliers
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What does the correlation coefficient indicate in a scatter plot?
The strength and direction of the linear correlation
The total sum of the variables
The average value of the variables
The number of data points
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the purpose of minimizing the squares of residuals?
To decrease the correlation coefficient
To find the line that best fits the data
To increase the number of data points
To eliminate outliers
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which menu option should be selected on a graphing calculator to calculate the correlation coefficient?
Settings
Graph
Plot
Statistics
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the first step in creating a scatter plot on a graphing calculator?
Draw the line of best fit
Enter the bivariate data set into a spreadsheet
Select the regression type
Calculate the mean and standard deviation
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the process of fitting a line to a bivariate data set called?
Linear regression
Mean calculation
Correlation analysis
Standard deviation calculation
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What does the equation y hat = 67.3 + 6.8x represent?
The standard deviation
The correlation coefficient
The line of best fit
The mean of the data set
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